Attachment RadHaz

This document pretains to SES-LIC-20151231-00980 for License on a Satellite Earth Station filing.

IBFS_SESLIC2015123100980_1117924

CALHOUN SATELLITE COMMUNICATIONS TEMPORARY, TRANSPORTABLE EARTH STATION ANALYSIS OF NON—IONIZING RADIATION FOR A 2.4 METER C—BAND EARTH STATION This report analyzes the non—ionizing radiation levels for an earth station antenna. The OET Bulletin 65, Edit. 97—01, August 1997, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio frequency Electromagnetic Fields specifies that the maximun level of non—ionizing radiation that a person may be exposed to cover a six minute period is an average power density equal to 5 mw/cm2 in a controlled environment. For the general population, a person may be exposed to cover a thirty minute period is an average power density equal to imw/cm2 in an uncon— trolled environment. It is the purpose of this report to determine the power flux densities of the earth station surface area, in the near field, transition region and far field. P=Antenna Power(watts/4khz), G=Antenna Gain(db), D=Antenna Diameter(meters) F=Ctr Frequency(gHz), Wl=WaveLength (meters) Antenna Surface (m2) A=3.14*D2/4 Antenna Surface Density(w/m2) Ss=4*P/A Wavelength W1(m)=3/(F*10) Near Field Region Rnf (m) =D2/ (4*W1) Near Field Region Density Snf(m/m2)=16*.6*P/(3.14*D2) Transition Region Rff (m)=. 6*d2/W1 Transition Region Density St(w/m2)=Snf*Rnf/Rff Far Field Region Sff (m)=P*G/(4*3.14*Rff Earth Station Radiation Hazard Calculations Freq(ghz)= 6.1 Power(w)=—12.6 AntGain(db)= 41.6 AntSize(m)= 2.4 Wavelength(m)= .049 Antenna surface(m2)= 4.5 AntSurfDen $s (w/m2)= —11.10 Ss (mw/cm2)= —1.11 Near—Field Region Rnf (m)= 29.28 Near—Field Den Snf(w/m2)= —7.22 Snf (mw/cm2)= —.72 Transition Region Rff (m)= 70. 3 Tran Region Den St(w/cm2)= ~3.01 St (mw/cm2)= ~~30 Far Field Region Sff(w/cm2)= 01 Sff (mw/cm2)= .00 ANALYSIS RESULTS LIMITS — imw/cm2 Uncontrolled, Smw/cm2 Controlled Antenna Surface Density Ss (mw/cm—1.110 No Potential Hazard, < Limit Near Field Density Snf(mw/c —.722 Transition Region St (mw/om —.301 Far Field Density Sff (mw/c —.001 For a minimum elevation angle of 5.0(deg) and a object height of 15.0(ft) For radiation non—hazard, the minimum distance to object=179.3(ft) Prepared by: TELE—SCI SOLUTIONS, LLC Augusta, NJ 973—383—7845

CALHOUN SATELLITE COMMUNICATIONS TEMPORARY TRANSPORTABLE EARTH STATION ANALYSIS OF NON—IONIZING RADIATION FOR A 2.4 METER KU BAND EARTH STATION This report analyzes the non—ionizing radiation levels for an earth station antenna. The OET Bulletin 65, Edit. 97—01, August 1997, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio frequency Electromagnetic Fields specifies that the maximun level of non—ionizing radiation that a person may be exposed to cover a six minute period is an average power density equal to 5 mw/cm2 in a controlled environment. For the general population, a person may be exposed to cover a thirty minute period is an average power density equal to Imw/cm2 in an uncon— trolled environment. It is the purpose of this report to determine the power flux densities of the earth station surface area, in the near field, transition region and far field. P=Antenna Power(watts/4khz), G=Antenna Gain(db), D=Antenna Diameter(meters) F=Ctr Frequency(gHz), Wl=WavelLength (meters) Antenna Surface (m2) A=3.14*D2/4 Antenna Surface Density(w/m2) Ss=4*P/A Wavelength W1(m)=3/(F*10 Near Field Region Rnf (m)=D2/ (4*W1) Near Field Region Density Snf(m/m2)=16*.6*P/(3.14*D2) Transition Region Rff (m)=. 6*d2/W1 Transition Region Density St(w/m2)=Snf*Rnf/Rff Far Field Region Sff(m)=P*G/(4*3.14*Rff) Earth Station Radiation Hazard Calculations Freq(ghz)= 14.1 Power(w)=—15.6 AntGain(db)= 48.9 AntSize(m)= 2.A Wavelength(m)= .021 Antenna surface(m2)= 4.5 AntSurfDen $s (w/m2)= —13.77 Ss (mw/cm2)= =1 .38 Near~Field Region Rnf(m)= 67. 68 Near—Field Den Snf(w/m2)= ~8.95 Snf (mw/cm2)= —.89 Transition Region Rff(m)= 162.4 Tran Region Den St(w/cm2)= —3.73 St (mw/cm2)= —.37 Far Field Region Sff(w/cm2)= .00 Sff (mw/cm2)= .00 ANALYSIS RESULTS LIMITS — 1mw/cm2 Uncontrolled, Smw/cm2 Controlled Antenna Surface Density Ss(mw/cm—1.377 No Potential Hazard, < Limit Near Field Density Snf (mw/c —.895 Transition Region St (mw/om —.373 Far Field Density Sff (mw/c .000 For a minimum elevation angle of 5.0(deg) and a object height of 15.0(ft) For radiation non—hazard, the minimum distance to object=179.3(ft) Prepared by: TELE—SCI SOLUTIONS, LLC Augusta, NJ 973—383—7845


Document Created: 2015-12-09 15:41:30
Document Modified: 2015-12-09 15:41:30
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